Actually it can keep growing into your late 20's. And the shape of your body changes too, your chest fills out. I never really heard about this before it started happening to me, but my girlfriend noticed when I grew out of my boy figure and into a man.
I started shaving when I was 15. I developed chest hairs then or just after but the development continuted for a long time. I'm 30 now.
I started shaving when I was 15. I developed chest hairs then or just after but the development continuted for a long time. I'm 30 now.